A 19-year old Chicago man who was arrested Monday in connection with the shooting death of six-year old Arianna Gibson was released on Tuesday evening. The Cook County state attorney’s office decided there was not enough evidence to hold him.

Little Miss Gibson was asleep on her grandmother’s couch in the 7400 block of South Sangamon Street when she was struck in the chest and leg at 6 am on a Sunday morning. Gunfire that hit the home also injured and wounded two teens who are currently reported to be in good condition. Police Superintendant Garry McCarthy had said, upon arrest of the suspect, that the lead was “very very strong.”

The Saturday before the killing, the whole neighborhood had gathered for a back-to-school block party. Arianna was among dozens of children who played with sidewalk chalk and ate barbecue the day before classes began at Libby Elementary. A prayer vigil was held Monday in the girl’s honor.

Chicago Mayor Rahm Emanuel did visit with Arianna’s family in Englewood. “I don’t tolerate gun violence or any type of violence anywhere in our city — whether that’s downtown in the business district or whether that’s an innocent child sleeping in her grandmother’s home,” he said. “That is a loss for the city of Chicago.” A local reporter questioning Mayor Emanuel had attempted to downplay Arianna’s death in light of a State Street and Wacker rush-hour shooting that sent commuters fleeing. No one was hurt in the downtown rush-hour shooting.